Gas-burner.



0.11. ERICKSON.

GAS BUBJVER.y APLIOATION FILED MAI/1.5, 1912. v 1,057,814. Patented Apr. 1, 1913.

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C. H. ERICKSON.

GAS BURNER.

APPLICATION FILED MAR. 5. 1912.-

1,057,814. Patented Apr. 1, 1913.

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UNITED STATES PATENT GFFICE.

CARL H. ERICKSON, 0F DENVER, COLORADO.

GAS-BURNER.

Specification of Letters Patent.

Application filed March 5, l1912.

Patented Apr. 1, 1913. Serial No. 681,757.

To all whom t may concern: Y

Be it known that I, CARL H. ERICKSON, a subject of the King of Sweden, residing at Denver, in the county of Denver and State of Colorado, have invented new and useful Im rovements in Gas-Burners of which'tlie following is a specication.

The invention relates togas burners and` more particularly to the class of adjustable gas burners.

The primary object of the invention is the I provision of a burner for use in gas stove in which the flame therefrom may be brough will be automatically shiftedon regulating. the fuel supply thereto so that on lowering4 the flame the said burner will be brought. into close relation to a cooking utensil when placedvupon a stove thereby enabling all of the heat from the flamet-o the utensil andon the raising of t-he flame the said burner will be retracted from the. said cooking utensil lso as to avoid` the spreading of the flame thereby losing maximum heat from the same. f

Another object of the invent-ion is theprovision of a burner of this character in which gas will be prevented from escaping and also that will allow the maximum heating qualities to be derived from the flame issuing from theV burner with a minimized consumption of fuel. A

A still further object of the invention is the provision of a gas burner of' this character which is simple in construction, thoroughly reliable and eiiicient in operation and inexpensive in manufacture.

With these and other objects in view the.

invention consistsv in the construction, combination and arrangement of parts as will be hereinafter more .-fully described,

illustrated in the accompanying drawings, and pointed out in the claimshereunto ap- In the` drawings: Figure 1 is a fragment-ary, vertical, sectional view -through the gas stove showing the improved burner constructed in accordance with the invention in side elevation. Fig. 2 is a top vplan View play directly on A thereof. Fig. 3 is a vertical, longitudinal,

sectional view thereof. Fig. 4 is a sectional' view on the line 4-1 of Fig. 6 looking in the direct-ion of the arrow. Fig. 5 is an end elevation showing the air valve, the valve 'stem being shown in vertical section. Fig.

6 is a sectional view 011 the line 6 6 of Fig. 3. Fig; 7 is a sectional view on the line 7-7 of Fig. 6.

Similar reference characters indicate corresponding parts throughout the several views in the drawing.

Referring to the drawings by numerals, 5

and 6 designate the upper and lower front bars of a gasstove of any ordinary wellknown construction to' which is fixed the gas burner presentlydescribed.

The gas burner comprises a box-like body 7 .formed at its innler end with a vertical elongated guide plate. 8 having a dove-tail shaped guide tongue 9 vertically disposed 'on one face thereof while formed in the wall of the box-like body 7 at the outer side are a plurality of air inlet orifices 10 adapted to be opened and closed by'means of a regulat-ing disk 11 the same being formed with openings 12v adapted to register with the orifices 10 and is centrally mounted for rotation upon a valve stem 13 rotatably supported in a bearing14 rising centrally within the body'7 from its bottom, the stem 18 being formed with a tapered portion 15 litting within a correspondingly tapered seat 16 in the bearing 14 and this stem 13 is formed with a gas inlet bore17 extending centrally through a greater portion of thel length ofthe same and opening through the inner end thereof, the bore 17 being adapted for connection with the sinuous gas inlet channel 18l formed in the bearing 14 by means of a triangular-shaped opening 19 formed in the side wall of the stem 13, the said channel 18 being extended to provide .a vertical lead vent Q0 communicating with a gas supply pipe 21 adapted Ato be connected up with a gas main in any desirable manner. The triangular shaped opening in the stem 13 when broughtinto communication with' the channel 18 will permit the gas to enter the bore 17, the channel 18 being supplied with gas through the vent 20 leading from the supply pipe 21. The gas in the bore 17 passes through the open inner endy -thereof into the mixing chamber of the burner.

Slidably engaged upon the guide plate 8 of the body 7 is a detachable hollowr section 22 of the burner shank 23 carrying a perforated burner head 24: preferably of circular shape, although it may be of any other desirable shape and through which is emitted the fuel mixture to be burned, the section 22 being designed to form a mixing chamber 25 and is formed with a guide groove 26 correspondingly shaped to the tongue 9 for receiving the same, whereby the burner may be vertically adjusted on the guide plate 8 in. av manner present-ly described; Formed in the mixing chamber 25 is a vertical rack bar 27 meshing with a rack pinion 28 fixed' to the'valve stem 13 the latter being also passed througha bridge piece 29 arranged interiorly of the hollowV body 7 to provide an inner bearing for the said stem. Surrounding thestem 13 between the pinion 28 and the bridge piece 2S) is a coiled expansion spring 3() which is designed to act upon thestem for` holding the tapered portion 15 wedged in the'correspondingly shaped seat 1G in the bearing 14 to avoid the possibility of leakage of gas when the stem is being turned to shut off from open position or vice versa. The outer free end of the stem is formed with a turning handle 31 whereby it may be manually turned for supplying fuel or to shut oli' the same from the burner, the inner discharge end of the stem 13 being projected into the mixing chamber 25 for the admission of gas therein for the commingling of the same with air admitted through the air inlet orifices 10 and opening 12 in the front wall of the body 7 and regulating disk 11, respectively for the proposed combustion of the supply to burner when lighted. Y l

Stationarily mounted below the burner shank 23 is a shaft or rod 32 on which is journaled a rocking weight carrying arm 33 provided with an adjustable weight- 34 at one side of the axis of the shaft or rod 32 while connected to the arm 33 at the opposite side of the axis of said shaft is a lin 35 the same being also connected with the shank 23 of the burner and this weight 34 serves to balance the burner so as to permit the easy adjustment thereof on the turning of the stem 13 by hand, the shaft or rod 32 being supported 1n the stove in any suitable manner.

The section 22 at its elongated open end 36 communicates with a port 37 formed in the guide plate 8 of the body 7 so as to establish communication between the mixing chamberv25 and the said body 7 throughout the extent of adjustment of the burner vertically thereof, thereby permitting air to enter the mixing chamber 25 to be mixed with the gas when admitted thereto.

wWhen the gas supplyl has been turned ott from the burner the head 24 thereof will be positioned close to the top of the stove ,ela

so that when turning the stem 13 for the admission of gas to the burner head the latter will be retracted from the top of the stove and this movement is continuous until a full supply of gas is admitted thereto,

thus it being seen when the burner is lighted the burner is lighted. `The inlet opening 19 when the burner is extinguished is out of register with the sinuous channel 1S, thus shutting ofi' the gas supply to the burner.

From the foregoing description, taken in connection with the drawings, it is thought that the construction and operation of the invention will be clearly understood, and therefore, a more extended explanation has been omitted.

That is claimed is 1. In a gas stove, arburner comprising a hollow body, a burner shank'having a hollow section adjustably connected with said body, a hollow valve stem journaled in the said body and projected in the hollow section, and having inlet and outlet apertures, a rack depending within said hollow section, a pinion fixed to the stem and'meshing with the rack for raising and lowering the burner on the turning of the said stem, and fluid conducting means adapted for communication with the inlet aperture in the stem on` the turning of the latter for admitting fluid thereto.

2. In a gas stove, a burner comprising a hollow body, a burner shank having a hollow section adjustably connected with said body, a hollow valve stem journaled in the 'said body and projected in the hollow section, and having inlet and outlet apertures,-

a rack depending within said hollow section,

a pinion fixed to the stem and meshing with the rack for raising and lowering the burner on the turning of the said stem, fluid conducting means adapted for communication with the inlet aperture in the stem on the turning of the latter for admitting fluid thereto, and air supply means for admitting air into said hollow body.

' 3. In a gas stove, a burner comprising a hollow body, a burner shank havin a hollow section adjustably connected with said body, a hollow valve stem journaled in the said body, and projected in the hollow section, and having inlet and outlet apertures, a rack depending within said hollow section, a pinion fixed to the stem and meshing with the rack for raising and lowering the burner on the turning of the said stem, fluid conducting means adapted for communication with `the inlet aperture in the stem on the turning of the latter for admitting fluid thereto, air supply means for admitting air into said hollow body, and a perforated burner head on the said shank.Y

4. In aI as stove, a burnerfcomprising a hollow bo y, a burner shank havin a hollow section adjustably connected with said body, a hollow valve stem journaled in the said`body and projected in the hollow section, and having inlet and outlet apertures, a rack depending within said hollowl section, a pinion fixed to the stem and meshing with the rack for raising and lowering the burner on the turning of the said stem, fluid conducting means adapted-for communicationI with the inlet aperture in the stem on the turning of the latter for admittin Huid thereto, air supply means for admitting air into said hollow body, a perforated burner head on the said shank, and a swinging Weighted balancing means connected to the said shank.

5. In a tgasstove, a burner comprising a' ducting means adapted for Comunication with the inlet aperture thereto, air su `ply means for admitting air into saidho low body, a perforated burner head on the said 6. In a gasstove, a burner comprising a hollow body having a guide formed on its .inner face, a burner shank having a hollow section provided with a guide-way adjustably engaging said guide on the body, a

' hollow' stem journaled in said body and projected into the hollow section and having inlet and outlet openings, the said outlet opening being in commumcation with the hollow sectiona rack depending within said hollow section, a pinion xed to the stein-fand meshed with the rack, bearing means in the body for supporting the said stem, means for conducting fluid from a supply pipe to the inlet opening in the stem on the 'reglstering ofthe said opening with the said means When the stem is turned.

In testimony whereof I atiix my signature in presence oi two witnesses.`

CARL H; ERICKSON.

Witnesses OSCAR BERGLUND, `JOHN ERICKSON. 

